2010 Mercedes GL-Class Owner's Manual - Page 179

Climate control and the windows could fog up, impairing visibility and endangering you and others. Have a clogged filter replaced as soon as possible at an authorized Mercedes-Benz Center. 177 Deactivating the rear climate control from the front X G Warning! Air conditioning The air conditioning is operational while the engine is running and cools the interior air to the temperature set by the operator. In addition, the air conditioning dehumidifies the interior air and helps prevent window fogging. Follow the recommended settings for heating and cooling given on the following pages. Otherwise the windows could fog up, impairing visibility and endangering you and others. Keep the air intake grille in front of the windshield free of snow and debris. G Warning! i If the vehicle interior is hot, ventilate the interior before driving off, see "Summer opening feature" (Y page 107). The climate control will then adjust the interior temperature to the set value much faster. Deactivating the climate control system G Warning! When the climate control system is switched off, the outside air supply and circulation are also switched off. Only choose this setting for a short time. Otherwise the windows could fog up, impairing visibility and endangering you and others. X If you switch off the air conditioning, the vehicle will not be cooled when weather conditions are warm. The windows can fog up more quickly. Window fogging may impair visibility and endanger you and others. i Condensation may drip out from underneath the vehicle. This is normal and not an indication of a malfunction. Deactivating It is possible to deactivate the air conditioning. The interior air will then no longer be cooled or dehumidified. X Press button Á. The indicator lamp in the button goes out. The cooling function switches off after a short delay. Deactivating: Press button ^. The indicator lamp in the button comes on. X Reactivating: Press button Ã. Activating Moist air can fog up the windows. You can dehumidify the interior air with the air conditioning. X Press button Á again. The indicator lamp in the button comes on. i You can also press button ^ on the climate control panel. If you press button ¦ to reactivate the climate control system, the defrosting mode is activated. Z Controls in detail The air conditioning will not engage (no cooling) if the A/C mode is deactivated (Y page 177). Deactivating: Press button ±. The indicator lamp in the button comes on. X Reactivating: Press button ±. The indicator lamp in the button goes out.